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Aspera Faspex CVE-2025-36227

MEDIUM
Improper Neutralization of HTTP Headers for Scripting Syntax (CWE-644)
2026-03-10 psirt@us.ibm.com
XSS IBM Aspera Faspex
5.4
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-644
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization HTTP header neutralization
Impact

CVSS 5.4 (MEDIUM). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: Required.
Exploit ScenarioDerived

An attacker could exploit this vulnerability to conduct various attacks against the vulnerable system, including cross-site scri.
This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Aspera Faspex versions up to 5.0.14.3 contains a vulnerability that allows attackers to conduct various attacks against the vulnerable system, including cross-site scri (CVSS 5.4).

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Affects your stack

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Technical ContextAI · show details

affects Aspera Faspex. IBM Aspera Faspex 5 5.0.0 through 5.0.14.3 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers.  This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 5.4 MEDIUM
AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

DescriptionCVE.org

IBM Aspera Faspex 5 5.0.0 through 5.0.14.3 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers.  This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.

Executive ViewAI

Why It Matters

Organizations using IBM Aspera Faspex 5 5.0.0 through 5.0.14.3 should be aware of moderate risk from CVE-2025-36227 rated CVSS 5.4. Exploitation could compromise the security of affected deployments. Organizations should apply vendor updates when available and monitor for exploitation.

Business Impact: Low
Compensating Controls

Apply vendor patch. If patching is delayed: restrict network access and enable monitoring.

Threat Intelligence Overview

EPSS Score
0.0%
Top 94% exploitable
Data Quality
4 sources
Confidence: Medium
NVD CVE.org EPSS VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Low

Priority Score

27
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +27
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting MEDIUM

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

Affected Products (CPE)CVE.org

cpe:2.3:a:ibm:aspera_faspex:*:*:*:*:*:*:*:*

Related Vulnerabilities in IBM Aspera Header Injection

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CVE-2025-13213 MEDIUM
5.4

More in Aspera Faspex

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CVE-2023-27874 HIGH
8.8 Mar 21

IBM Aspera Faspex 4.4.2 is vulnerable to an XML external entity injection (XXE) attack when processing XML data. Rated h
CVE-2024-45098 HIGH
8.1 Sep 05

IBM Aspera Faspex 5.0.0 through 5.0.9 could allow a user to bypass intended access restrictions and conduct resource mod
CVE-2023-30995 HIGH
7.5 Sep 08

IBM Aspera Faspex 4.0 through 4.4.2 and 5.0 through 5.0.5 could allow a malicious actor to bypass IP whitelist restricti
CVE-2023-35906 HIGH
7.5 Sep 05

IBM Aspera Faspex 5.0.5 could allow a remote attacked to bypass IP restrictions due to improper access controls. Rated h
CVE-2023-27871 HIGH
7.5 Mar 21

IBM Aspera Faspex 4.4.2 could allow a remote attacker to obtain sensitive credential information for an external user, u
CVE-2023-27875 HIGH
7.5 Mar 16

IBM Aspera Faspex 5.0.4 could allow a user to change other user's credentials due to improper access controls. Rated hig
CVE-2022-22497 HIGH
7.5 May 24

IBM Aspera Faspex 4.4.1 and 5.0.0 could allow unauthorized access due to an incorrectly computed security token. Rated h
CVE-2025-33137 HIGH
7.1 May 22

IBM Aspera Faspex 5.0.0 through 5.0.12 could allow an authenticated user to obtain sensitive information or perform unau
CVE-2025-33136 HIGH
7.1 May 22

IBM Aspera Faspex 5.0.0 through 5.0.12 could allow an authenticated user to obtain sensitive information or perform unau
CVE-2024-45097 HIGH
7.1 Sep 05

IBM Aspera Faspex 5.0.0 through 5.0.9 could allow a user to bypass intended access restrictions and conduct resource mod
CVE-2024-45096 MEDIUM
6.5 Sep 05

IBM Aspera Faspex 5.0.0 through 5.0.9 could allow a user with access to the package to obtain sensitive information thro
CVE-2023-27873 MEDIUM
6.5 Mar 21

IBM Aspera Faspex 4.4.2 could allow a remote authenticated attacker to obtain sensitive credential information using spe

Same weakness CWE-644 – Improper Neutralization of HTTP Headers for Scripting Syntax

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References

Advisories & patches
ADVISORY https://vuldb.com/?id.350154 ADVISORY https://www.ibm.com/support/pages/node/7262816

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